How to store Query Result in variable using mysql

Question

SET @v1 := SELECT COUNT(*) FROM user_rating;
SELECT @v1

When I execute this query with set variable this error is shown.

Answer 1

Additionally, if you want to set multiple variables at once by one query, you can use the other syntax for setting variables which goes like this: SELECT @varname:=value.

A practical example:

SELECT @total_count:=COUNT(*), @total_price:=SUM(quantity*price) FROM items ...

Answer 2

use this

 SELECT weight INTO @x FROM p_status where tcount=['value'] LIMIT 1;

tested and workes fine...

Answer 3

Select count(*) from table_name into @var1; 
Select @var1;

Answer 4

Surround that select with parentheses.

SET @v1 := (SELECT COUNT(*) FROM user_rating);
SELECT @v1;